3Com 3C892 - page 69

Changing Data Call Parameters 69

Connect/Disconnect Threshold for the Second B Channel

If you specified that you want to use the second B channel only when needed,

indicate the percentage of bandwidth utilization on the first B channe l which must

be reached before the second B channel is alloca ted, or below which the first

B channel must fall before the second B chan nel is removed. By default the

threshold is 60%.

Connect Delay

This field defines the length of time the ISDN LAN Mo dem should wait before

adding the second B channel. The default is 10 seconds. This default, in

combination with the Connect/Disconnect Threshold d efault,

means that after a B channel reaches over 60% throughput for ten seconds, a

second B channel is added, if not in use by a nother call.

Disconnect Delay

This field defines the length of time the ISDN LAN Mo dem should wait before

removing the second B channel. The default is 20 seconds. This default, in

combination with the Connect/Disconnect Threshold d efault, means that if

throughput falls below 60% for 20 seconds, a B channel is removed.

Configuring the Data

Call Parameters

To configure data call parameters, do the following.

1From the ISDN LAN Modem main page, click Data Call Parameters.

2Specify the minimum call duration.

3Specify the inactivity period for an automatic data call.

4Specify the inactivity period for a manual data call.

5If you specified that you want to use the second B channel only when needed,

enter the percentage of bandwidth that must be reached on the first B channel

before the second B channel is added or removed .

6If you specified that you want to use the second B channel only when needed,

enter the length of time the ISDN LAN Modem shoul d wait before adding the

second B channel after the percentage in the Connect/Disconnect Threshold field

is reached.

7If you specified that you want to use the second B channel only when needed,

enter the length of time the ISDN LAN Modem shoul d wait before removing the

second B channel after it falls below the thresho ld defined in the

Connect/Disconnect Threshold field.

8Click Submit.

If you want to password protect the config uration profile of the ISDN LAN

Modem, refer to “Locking and Unlocking the Configuration.”

Contents

Main ii 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 T ABLE OF CONTENTS ABOUT THIS GUIDE 1 2 3 4 5 6 7 8 9 A B C D E ABOUT THIS GUIDE How to Use This Guide Conventions Year 2000 Compliance Table2 Notice Icons Table3 Text Conventions 1 Introduction Applications Page Features Page Page Page 2 FUNCTIONALITY DESCRIPTION Connection Types Page Connection Types 19 One High Speed Connection to a Single Location Figure 8 Shared Connection to the Same Location Figure 7 One High-Speed Connection to a Single Location Mary Call Routing Protocol and IP Address Trans lat ion Understanding Multilink PPP and BACP/BAP Understanding Dynamic Bandwidth Allocation Understanding VPNs and PPTP Page 3 I Package Contents Before You Install the Front Panel LED Description The front panel provides the following LEDs. Figure 11 ISDN LAN Modem Front Panel Table4 Front Panel LED Indicator Definitions Installing the ISDN LAN Modem Page Page Page Wall Mounting the ISDN LAN Modem WARNING: Using Rubber Feet and Stacking Clips 4 Page Page TCP/IP Setup Using Windows NT 4.0 Page Page TCP/IP Setup Using Mac OS 7.6 or later TCP/IP Setup Using Windows 3.11 Page Page 5 M Typical Configuration Before You Begin Page Page Page Configuring the ISDN LAN Modem for t he Typical Configuration Page Page Page Page ISDN LAN Modem Main Page Page Page 6 Before you Begin Setting Up Additional Service Providers Page Page Page Page Page Page Page Editing Service Provider Profiles Page Page Changing Data Call Parameters Page Page Changing Voice Call Routing Reserving DHCP Addresses Selective Password Protection Changing Your Password Setting Up Your ISDN Line Manually Locking and Unlocking the Configuration Configuring the ISDN LAN Modem from a Remote Location Page Page 7 S Supplementary Voice Services Call Waiting How to Use Call Waiting To use Call Waiting, do the following. Table1 How t o Use Call Waiting Caller ID Flexible Calling Call Conference (Three-Way Calling) Table2 How to Use Call Conference Table3 How to Use Call Transfer Message Service/Voice Mail Call Forwarding Page 8 DISCONNECTING CALLS Placing Calls Placing a Call Automatically Placing a Call Manually Receiving Calls Disconnecting Data Calls Page Page 9 M Checking the Basics Monitoring LEDs Troubleshooting Problems Indicated by LEDs Table5 Troubleshooting Problems Indicated by LEDs Evaluating Symptoms and Solutions Table6 lists symptom s of common problems, possible causes, and possible solutions. Page Page Page Page Page Finding More Information Contacting Technical Support Downloading Firmware to Your Resetting the ISDN LAN Modem Reviewing Statistics Understanding ISDN Information The current call information provided is as follows. Understanding Current Call Information Table9 Table10 Current Call In formation Description Understanding Last Call Information The last call information for both B channels (that is, call 1 and call 2) is as follows. Table11 Understanding Last Call Information Table10 Current Call Information D escription Understanding Service Provider Information The following Service Provider information is provided after a call has ended. Table12 Service Provider Information Description A What is a network? Page Page Page Page Page B Custom Links Using Favorites Installing the Custom Internet Explorer Browser C D Table13 ISDN LAN Modem Fa ctory Defaults Page D Refer to Table14 for the ISDN LAN Modem specifications. Table14 ISDN LAN Modem Specifications Year 2000 Compliance E If You Place Your ISDN Order Through 3Com If You Place Your ISDN Order Through the Telephone Company Page Supplementary Voice Features Included with U, EZ-ISDN-1, V and EZ-ISDN 1A Limitations of ISDN Ordering Codes U, EZ-ISDN 1, V and EZ-ISDN 1A Page What If I Already Have ISDN Service? Table of ISDN Ordering Code Capabilities G Page Page Page I A B C D Page 3Com Corporation LIMITED WARRANTY OfficeConnect ISDN LAN Modem H S OBTAINING WARRANTY S L IMITATION OF L D G OVERNING L DECLARATION OF C FCC PART 68 STATEMENT 3Com Corporation C ANADIAN N